So when he started to yell at me I said if you going to yell we need to go to the parking lot. He took off and when the Nursing supervisor came to talk to me and wanted to know why I threatened the MD, I said " I told him if he was going to yell at me we needed to go to the parking lot, don't you think that is a more appropriate place to have that type of conversation? She agreed with me and went and spoke with him, he never yelled at me again.